Genius Turns into a Demon

The protagonist Zhang Wei was a complete loser in his previous life. After his rebirth, he came to a world similar but different from the earth. He is a genius in this world. He is a monster. He was one of the time-travelers who died once just after time-traveling. But that doesn't stop him from making waves in the world. In order to make more trouble, he used secret techniques to become a monster, became a disciple of the number one in the monster world, and eventually became a villain. Is he really a villain? He didn't kill anyone, he didn't kill monsters, and he never did anything harmful to nature. Instead he is the protagonist of the legend. He was born into a better family than he was. He has more friends than him. He is ostracized by others, but this protagonist is born with wealth and splendor. Zhang Wei, the grievances accumulated in past and present lives. Let him take the risk and become a monster, he wants all the injustice in the world to disappear. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.